NV8_ATTRDATW
#define ATBW(A,B)(NV_REG8(NV8_INSTAT1), NV_REG8(NV8_ATTRINDW) = ((NVATBX_##A) | 0x20), NV_REG8(NV8_ATTRDATW) = (B))
*reg = NV8_ATTRDATW;